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Peripheral and central inputs to the effort sense during cycling exercise

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Summary

The relationships between some physical and physiological events, and perceived effort were studied at several equivalent work outputs (V) at two pedalling rates (30 and 60 rev·min−1). Subjects judged effort throughout a 4 min exercise bout. After 4 min at any sen it was always more effortful to pedal at 30 rev·min −1 even though there were no differences in V E, VO2 or integrated electromyography per minute (IEMG·min−1) between pedalling rates. Effort was related to VO2 and IEMG·min−1 but it was more effortful to pedal at 30 rev·min−1. Effort was also related to pedal resistance and IEMG of single contractions but was influenced by pedalling rate after 4 min of exercise. At any resistance it was more effortful to pedal at 60 rev·min −1, however, when effort was plotted as a function of resistance after 15 s, there was virtually no effect of pedalling rate. The rate effect grows with time from the onset of exercise and appears to be related to the central signal to the effort sense. The interaction of peripheral and central signals suggests a model of the effort sense during exercise.

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References

  1. Åstrand, I.: Aerobic work capacity in men and women with special reference to age. Acta physiol. scand. 49, Suppl. 169 (1960)

    Google Scholar 

  2. Banister, E. W., Jackson, R. C.: The effect of speed and load changes on oxygen intake for equivalent power outputs during bicycle ergometry. Int. Z. angew. Physiol. 24, 284–290 (1967)

    Google Scholar 

  3. Bigland, B., Lippold, O. C. J.: The relation between force, velocity and integrated electrical activity in human muscles. J. Physiol. (Lond.) 123, 214–224 (1954)

    Google Scholar 

  4. Bigland-Ritchie, B., Woods, J. J.: Integrated EMG and oxygen uptake during dynamic contractions of human muscles. J. appl. Physiol. 36, 475–479 (1974)

    Google Scholar 

  5. Borg, G. A. V.: Physical performance and perceived exertion. Studia Psychologica et Paedagogica 11, 1–64 (1962)

    Google Scholar 

  6. Borg, G. A. V.: The basic “noise constant” in the psychophysical function of perceived exertion. Reports from the Institute of Applied Psychology. University of Stockholm, No. 33, 1972

  7. Cafarelli, E., Cain, W. S., Stevens, J. C.: Effort of dynamic exercise: influence of load, duration and task. Ergonomics 20, 147–158 (1977)

    Google Scholar 

  8. Cafarelli, E., Noble, B. J.: The effect of inspired CO2 on subjective estimates of exertion during exercise. Ergonomics 19, 581–589 (1976)

    Google Scholar 

  9. Cain, W. S.: Nature of perceived effort and fatigue: roles of strength and blood flow in muscle contractions. J. Mot. Behav. 5, 33–47 (1973)

    Google Scholar 

  10. Clarke, D. H., Stull, G. A.: Strength recovery patterns following isometric and isotonic exercise. J. Mot. Behav. 1, 233–243 (1969)

    Google Scholar 

  11. Croonen, F., Binkhorst, R. A.: Oxygen uptake calculated from expiratory volume and oxygen analysis only. Ergonomics 17, 113–117 (1974)

    Google Scholar 

  12. Ekblom, B., Goldbarg, A. N.: The influence of physical training and other factors on the subjective rating of perceived exertion. Acta physiol. scand. 83, 399–406 (1971)

    Google Scholar 

  13. Henriksson, J., Bonde-Petersen, F.: Integrated electromyography of quadriceps femoris muscle at different exercise intensities. J. appl. Physiol. 36, 218–220 (1974)

    Google Scholar 

  14. Henriksson, J., Knuttgen, H. G., Bonde-Petersen, F.: Perceived exertion during exercise with concentric and eccentric muscle contractions. Ergonomics 15, 537–544 (1972)

    Google Scholar 

  15. Kamon, E., Pandolf, K., Cafarelli, E.: The relationship between perceptual information and physiological responses to exercise in the heat. J. Human Ergol. 3, 45–54 (1974)

    Google Scholar 

  16. Linnarsson, D.: Dynamics of pulmonary gas exchange and heart rate changes at start and end of exercise. Acta physiol. scand., Suppl. 415 (1974)

  17. Michael, E., Eckhardt, L.: The selection of hard work by trained and non-trained subjects. Med. Sci. Sports 4, 107–110 (1972)

    Google Scholar 

  18. Noble, B. J., Metz, K. F., Pandolf, K. B., Cafarelli, E.: Perceptual responses to exercise: a multiple regression study. Med. Sci. Sports 5, 104–109 (1973)

    Google Scholar 

  19. Noble, B., Metz, K., Pandolf, K., Bell, C., Cafarelli, E., Sime, W.: Perceived exertion during walking and running — II. Med. Sci. Sports 5, 116–120 (1973)

    Google Scholar 

  20. Pandolf, K. B., Cafarelli, E., Noble, B. J., Metz, K. F.: Perceptual responses during prolonged work. Perc. Mot. Skills 35, 975–985 (1972)

    Google Scholar 

  21. Pandolf, K. B., Cain, W. S.: Constant effort during static and dynamic muscular exercise. J. Mot. Behav. 6, 101–110 (1974)

    Google Scholar 

  22. Pandolf, K. B., Noble, B. J.: The effect of pedalling speed and resistance changes on perceived exertion for equivalent power outputs on the bicycle ergometer. Med. Sci. Sports 5, 132–136 (1973)

    Google Scholar 

  23. Royce, J.: Isometric fatigue curves in human muscle with normal and occluded circulation. Res. Quart. 29, 204–212 (1958)

    Google Scholar 

  24. Shephard, R. J., Allen, C., Benade, A. J., Davies, C. T. M., diPrampero, P. E., Hedman, R., Merriman, J. E., Myhre, K., Simmons, R.: The maximum oxygen uptake. Bull. Wld Hlth Org. 38, 757–764 (1968)

    Google Scholar 

  25. Skinner, J. S., Hutsler, R., Bergsteinova, V., Buskirk, E. R.: Perception of effort during different types of exercise and under different environmental conditions. Med. Sci. Sports 5, 110–115 (1973)

    Google Scholar 

  26. Stamford, B. A., Noble, B. J.: Metabolic cost and perception of effort during bicycle ergometer work performance. Med. Sci. Sports 6, 226–231 (1974)

    Google Scholar 

  27. Start, K. B., Holmes, R.: Local muscle endurance with open and occluded intramuscular circulation. J. appl. Physiol. 18, 804–807 (1963)

    Google Scholar 

  28. Stevens, J. C.: Psychophysical invariances in proprioception. In: Cutaneous communication systems and devices (F. A. Geldard, ed.). Austin, Texas: Psychonomic Society 1974

    Google Scholar 

  29. Stevens, J. C., Cain, W. S.: Effort in isometric muscular contractions related to force level and duration. Percept. and Psychophys. 8, 240–244 (1970)

    Google Scholar 

  30. Stevens, J. C., Krimsley, A. S.: Buildup of fatigue: Role of blood flow. In: Physical work and effort (G. Borg, ed.). Oxford: Pergamon 1976

    Google Scholar 

  31. Stevens, S. S.: On the psychophysical law. Psych. Rev. 64, 153–181 (1957)

    Google Scholar 

  32. Stevens, S. S.: Psychophysics — Introduction to its perceptual, neural and social prospects, pp. 30–31. New York: Wiley 1975

    Google Scholar 

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This research supported by NIH Training Grant No. ES00123

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Cafarelli, E. Peripheral and central inputs to the effort sense during cycling exercise. Europ. J. Appl. Physiol. 37, 181–189 (1977). https://doi.org/10.1007/BF00421773

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